0.04  Thu Mar 23 11:42:28 2006
	- fixed is_join() & is_joinable() on Win32 Perl5.8.0

0.03  Sat Mar 18 07:33:03 2006
	- modified for CPAN version threads (1.11)

0.02  Fri Mar 10 10:28:36 2006
	- added in_context() which returns created context (like wantarray).

0.01  Wed Mar  8 06:59:43 2006
	- original version;